Average Bench: 120% (147th of 1011)

Based on 8,282 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 19.9% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 342MB/s
Avg. 4K-64Thread Read Speed 773MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 68.8%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 235MB/s
Avg. Sequential Write Speed 265MB/s
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Average Bench

(Based on 8,282 samples)
Min Avg Max
631 Read 921 1,042
120 Write 265 309
171 Mixed 290 347
73.1 SusWrite 235 299
93.4% 428 MB/s
Min Avg Max
16.8 4K Read 37.6 41.9
41.3 4K Write 109 157
15.2 4K Mixed 31.5 39.9
155% 59.4 MB/s
Min Avg Max
131 DQ Read 773 988
102 DQ Write 261 314
95.5 DQ Mixed 342 424
299% 459 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
160GB free (System drive)
Firmware: BXV76D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 296 295 292 296 297 296 MB/s
Read 956
Write 303
Mixed 326
SusWrite 295
103% 470 MB/s
4K Read 40.5
4K Write 141
4K Mixed 36.2
182% 72.5 MB/s
DQ Read 981
DQ Write 310
DQ Mixed 410
364% 567 MB/s
148GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 297 296 295 295 294 295 MB/s
Read 981
Write 305
Mixed 333
SusWrite 295
105% 478 MB/s
4K Read 39.1
4K Write 122
4K Mixed 38.5
173% 66.4 MB/s
DQ Read 986
DQ Write 304
DQ Mixed 415
366% 568 MB/s
29GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 298 299 255 180 137 116 MB/s
Read 1,000
Write 309
Mixed 322
SusWrite 214
101% 461 MB/s
4K Read 41.2
4K Write 127
4K Mixed 38.7
179% 69.1 MB/s
DQ Read 987
DQ Write 313
DQ Mixed 414
367% 571 MB/s
81GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 293 293 293 295 296 295 MB/s
Read 879
Write 160
Mixed 331
SusWrite 294
91% 416 MB/s
4K Read 38.5
4K Write 118
4K Mixed 36.4
168% 64.3 MB/s
DQ Read 925
DQ Write 307
DQ Mixed 414
358% 549 MB/s
68GB free
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 289 259 212 180 159 157 MB/s
Read 925
Write 297
Mixed 321
SusWrite 209
96% 438 MB/s
4K Read 33.9
4K Write 124
4K Mixed 36.8
164% 65 MB/s
DQ Read 970
DQ Write 304
DQ Mixed 431
372% 568 MB/s
206GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 291 287 282 288 241 155 MB/s
Read 845
Write 303
Mixed 311
SusWrite 257
94% 429 MB/s
4K Read 34.3
4K Write 95.1
4K Mixed 31.9
143% 53.8 MB/s
DQ Read 654
DQ Write 306
DQ Mixed 407
321% 456 MB/s
18GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 72 66 72 66 71 65 MB/s
Read 606
Write 98
Mixed 136
SusWrite 68.7
49% 227 MB/s
4K Read 35.4
4K Write 89.1
4K Mixed 25.8
134% 50.1 MB/s
DQ Read 926
DQ Write 92.8
DQ Mixed 171
210% 396 MB/s
8,282 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,503,312 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 4,018 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 14%
Tree trunk
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 39%
Jet ski

System: Alienware 17 R3

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

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  • - CPU tests include: integer, floating and string.
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Solid State Drive Rankings (Price vs Performance) October 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

2 years ago.

Fast as heck...at half speed I might add!


Your
opinion?
1011 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9400F $145Nvidia GTX 1660 $210Samsung 850 Evo 250GB $73
Intel Core i5-9600K $240Nvidia RTX 2060 $349Samsung 850 Evo 500GB $107
Intel Core i7-9700K $350Nvidia GTX 1660-Ti $270Samsung 850 Pro 256GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $78G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $70SanDisk Ultra Fit 32GB $14
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